JP2016511805A - Feeder for knitting machines with reduced friction configuration - Google Patents

Abstract

A knitting machine feeder (220) includes a feeder arm (240) with a yarn feeding section (245) configured to feed strands (206) toward the knitting floor of the knitting machine. . In addition, the feeder (220) includes an actuating arm (250) operably coupled to the feeder arm (240). The actuating arm (250) includes an abutment surface (253) configured to abut against a drive bolt (219) of the knitting machine to selectively move the feeder arm (240) relative to the knitting floor. . The contact surface (253) has a rounded convex shape. [Selection] Figure 18

Description

  The present invention relates to a feeder for a knitting machine.

  Various knitting machines have already been proposed that can automate one or more steps in knitting the fabric. For example, the flat knitting machine can include a knitting needle bed, a carriage, and a feeder. The carriage can move relative to the needle bed to move the feeder relative to the needle as the feeder feeds the yarn or other strand toward the needle. The needle can also knit the knitted fabric from strands or otherwise form the knitted fabric. These operations can be repeated until the knit component is completed.

  Various components can be made from such knit components. For example, an upper for a footwear product can be formed from a knitted component.

US Patent Application Publication No. 2012/0234051 US Pat. No. 8,448,474

  A knitting machine feeder having a knitted floor on which knit components are knitted is disclosed. The knitting machine includes a drive bolt. The feeder includes a feeder arm with a yarn feeding section configured to feed strands toward the knitted floor. Further, the feeder includes an actuating arm operably coupled to the feeder arm. The actuating arm includes an abutment surface configured to abut against the drive bolt and selectively move the feeder arm relative to the knitted floor. The contact surface has a rounded convex shape.

  A knitting machine for forming a knitted component is also disclosed. The knitting machine includes a knitted floor with a plurality of needles and a drive bolt attached for movement relative to the knitted floor. The knitting machine further includes a feeder for feeding strands toward the knitted floor. The feeder includes a feeder arm with a yarn feeding section configured to feed strands toward the knitted floor. The feeder also includes an actuating arm operably coupled to the feeder arm. The operating arm includes an abutting surface configured to abut against the drive bolt and selectively move the feeder arm relative to the knitted floor.

  Furthermore, a knitting machine for forming a knitted component is disclosed. The knitting machine includes a knitted floor having a plurality of needles and a rail having a linear longitudinal axis. The rail is spaced apart from the knitted floor in the lateral direction. The knitting machine also includes a carriage that is mounted for movement along the longitudinal axis. The knitting machine further includes a drive bolt. The drive bolt is movably attached to the carriage for lateral movement relative to the carriage between an extended position and a retracted position. In addition, the knitting machine includes a feeder for feeding the strands toward the knitted floor. The feeder includes a feeder arm with a yarn feeding section configured to feed strands toward the knitted floor. The feeder also includes an attachment element that movably supports the feeder arm on the rail for movement along the longitudinal axis of the rail. Further, the feeder includes an actuating arm operably coupled to the feeder arm. The operating arm includes a first contact surface and a second contact surface. The first abutment surface is in contact with the drive bolt when the drive bolt is in the extended position for movement in the first direction along the longitudinal axis of the rail. Is coupled to the carriage. The second abutment surface is in contact with the drive bolt when the drive bolt is in the extended position, and the feeder arm for movement in a second direction along the longitudinal axis of the rail. Is coupled to the carriage. At least one of the first and second contact surfaces has a rounded convex shape.

  The advantages and features of novelty that characterize aspects of the present disclosure are particularly pointed out in the appended claims. However, for a fuller understanding of the advantages and features of novelty, reference may be made to the following descriptive matter and accompanying drawings that describe and illustrate various configurations and concepts related to the disclosure.

  The foregoing summary, as well as the following detailed description, will be better understood when read in conjunction with the appended drawings.

It is a perspective view of footwear products. It is an elevational view of the outer side of the footwear product. It is an elevational view of the inner side of the footwear product. 4 is a cross-sectional view of the article of footwear defined by the cut line 4A of FIGS. 2 and 3. FIG. FIG. 4 is a cross-sectional view of the article of footwear defined by the cut line 4B of FIGS. 2 and 3. FIG. 4 is a cross-sectional view of the article of footwear defined by cut line 4C in FIGS. 2 and 3. 1 is a top plan view of a knitted component forming part of an upper of a footwear product according to an exemplary embodiment of the present disclosure. FIG. FIG. 6 is a bottom plan view of the knit component of FIG. 5. FIG. 6 is a cross-sectional view of the knit component defined by section line 7A in FIG. FIG. 6 is a cross-sectional view of the knit component defined by section line 7B of FIG. FIG. 6 is a cross-sectional view of the knit component defined by section line 7C in FIG. FIG. 6 is a cross-sectional view of the knit component defined by section line 7D of FIG. FIG. 6 is a cross-sectional view of the knit component defined by section line 7E of FIG. It is a top view which shows the knit structure of the knit component of FIG. It is a top view which shows the knit structure of the knit component of FIG. 1 is a perspective view of a knitting machine according to an exemplary embodiment of the present disclosure. FIG. It is an elevation view of the combination feeder of the knitting machine. It is an elevation view of the combination feeder of the knitting machine. It is an elevation view of the combination feeder of the knitting machine. It is an elevational view corresponding to FIG. 10, showing the internal components of the combination feeder. FIG. 14 is an elevational view corresponding to FIG. 13 showing the operation of the combination feeder. FIG. 14 is an elevational view corresponding to FIG. 13 showing the operation of the combination feeder. FIG. 14 is an elevational view corresponding to FIG. 13 showing the operation of the combination feeder. FIG. 17 is an elevational view of the combination feeder of FIGS. 10-16 shown in a retracted position. FIG. 17 is an elevation view of the combination feeder of FIGS. 10 to 16 shown in an extended position. It is an end view of the conventional feeder which knits a knit component. FIG. 17 is an end view of the combination feeder of FIGS. 10-16 showing the insertion of the strands into the knit component of FIG. 19, the combination feeder being shown in a retracted position. FIG. 17 is an end view of the combination feeder of FIGS. 10-16 showing the insertion of the strands into the knit component of FIG. 19, the combination feeder being illustrated in the extended position. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. It is a typical perspective view of the knitting process using a combination feeder and the conventional feeder. FIG. 6 is an elevation view of a combination feeder according to an additional exemplary embodiment of the present disclosure. FIG. 10 is an end view of a group of rollers in the lowering assembly of the knitting machine of FIG. 9. FIG. 3 is a perspective view of a group of rollers of a lowering assembly according to an exemplary embodiment of the present disclosure shown in operation. FIG. 3 is a perspective view of a group of rollers of a lowering assembly according to an exemplary embodiment of the present disclosure shown in operation. FIG. 3 is a perspective view of a group of rollers of a lowering assembly according to an exemplary embodiment of the present disclosure shown in operation. FIG. 3 is a perspective view of a group of rollers of a lowering assembly according to an exemplary embodiment of the present disclosure shown in operation. FIG. 10 is a cross-sectional view of the knitting machine along line 37-37 of FIG. 9 showing the lowering assembly of the knitting machine according to an exemplary embodiment of the present disclosure. FIG. 38 is a schematic perspective view of a group of rollers of the lowering assembly of FIG. 37. FIG. 3 is a perspective view of a group of rollers of a lowering assembly according to an exemplary embodiment of the present disclosure shown in operation. FIG. 3 is a perspective view of a group of rollers of a lowering assembly according to an exemplary embodiment of the present disclosure shown in operation. FIG. 3 is a perspective view of a group of rollers of a lowering assembly according to an exemplary embodiment of the present disclosure shown in operation. FIG. 3 is a perspective view of a group of rollers of a lowering assembly according to an exemplary embodiment of the present disclosure shown in operation. FIG. 6 is an elevation view of a combination feeder according to an additional exemplary embodiment of the present disclosure. FIG. 44 is an elevational view of the combination feeder of FIG. 43 showing in use. FIG. 44 is an elevational view of the combination feeder of FIG. 43 showing in use.

  The following description and the accompanying drawings disclose various concepts relating to knitting machines, knit components and the manufacture of knit components. Although the knitted component may be utilized in a variety of products, an footwear product incorporating one of the knitted components is disclosed below as an example. In addition to footwear, knit components can be used for other types of clothing (eg shirts, trousers, socks, outerwear, underwear), exercise equipment (eg golf bags, baseball and football gloves, soccer ball regulations). Structures), containers (eg, backpacks, bags), and furniture decorations (eg, chairs, sofas, car seats). Knit components may also be used for bed coverings (eg, sheets, blankets), table coverings, towels, flags, tents, sails and parachutes. Knit components include structures for automotive and aerospace industries, filter materials, medical fabrics (eg bandages, cotton swabs, grafts), geotextiles to reinforce dikes, agrotextiles to protect crops And may be used as industrial technical textiles, including industrial clothing that protects or insulates from heat and radiation. Accordingly, the knitted components and other concepts disclosed herein may be incorporated into various products for both personal and industrial purposes.

Footwear Configuration A footwear product 100 including a sole structure 110 and an upper 120 is illustrated in FIGS. Although the footwear 100 is depicted as having a general configuration suitable for running, the concepts associated with the footwear 100 are, for example, baseball shoes, basketball shoes, cycling shoes, football shoes, tennis shoes, soccer shoes, It may also apply to a variety of other athletic footwear types including training shoes, walking shoes and hiking boots. This concept may also apply to footwear types generally considered non-exercise, including dress shoes, loafers, sandals and work shoes. Accordingly, the concepts disclosed with respect to footwear 100 apply to a variety of footwear types.

  For reference purposes, the footwear 100 can be divided into three general regions, a foot region 101, a midfoot region 102, and a heel region 103. The toe region 101 generally includes a portion of the footwear 100 corresponding to the toes and joints connecting the metatarsals and phalanges. The midfoot region 102 generally includes the portion of the footwear 100 that corresponds to the arch area of the foot. The heel region 103 generally corresponds to the back of the foot including the ribs. Footwear 100 also includes an outer side portion 104 and an inner side portion 105 that extend through each of regions 101-103 and correspond to both sides of footwear 100. More specifically, the outer side portion 104 corresponds to the outer portion of the foot (ie, the surface facing away from the other foot), and the inner side portion 105 corresponds to the inner portion of the foot (ie, , The surface facing the other leg). Regions 101-103 and sides 104-105 are not intended to delimit the exact area of footwear 100. Rather, regions 101-103 and sides 104-105 are intended to represent a general area of footwear 100 to assist in the following description. In addition to footwear 100, regions 101-103 and sides 104-105 may apply to sole structure 110, upper 120, and their individual elements.

  The sole structure 110 is fixed to the upper 120 and extends between the foot and the ground when the footwear 100 is worn. The main elements of the sole structure 110 are a midsole 111, an outsole 112 and an insole 113. The midsole 111 is fixed to the lower surface of the upper 120 and reduces the reaction force of the ground when compressed between the foot and the ground when walking, running or during other walking activities. It may be formed from a compressible polymer foam element (eg, polyurethane or ethyl vinyl acetate foam) that weakens (ie, becomes a cushioning material). In a further configuration, the midsole 111 may incorporate a plate, moderator, liquid-filled chamber, lasting element, or motion control member that further reduces force, increases stability, or affects foot movement, or The midsole 21 may be formed primarily from a liquid filled chamber. The outsole 112 is fixed to the lower surface of the midsole 111, and may be formed from a wear-resistant rubber material woven so as to impart traction. The insole 113 is disposed in the upper 120 and extends under the lower surface of the foot so as to enhance the comfort of the footwear 100. While this configuration of the sole structure 110 provides one example of a sole structure that may be used in connection with the upper 120, various other conventional or unconventional configurations of the sole structure 110 are also utilized. May be. Accordingly, the characteristics of the sole structure utilized with the sole structure 110 or the upper 120 may vary significantly.

  Upper 120 defines a cavity in footwear 100 for receiving and securing a foot to sole structure 110. The cavity is shaped to accommodate the foot and extends along the lateral side of the foot, along the medial side of the foot, above the foot, around the heel, and below the foot. Access to the cavity can be achieved by an ankle opening 121 located at least in the heel region 103. A lace 122 extends through various lace openings 123 in the upper 120 to allow the wearer to adjust the dimensions of the upper 120 to accommodate various proportions of feet. More specifically, the lace 122 allows the wearer to tighten the upper 120 around the foot and the lace 122 from the wearer's cavity (ie, through the ankle opening 121). The upper 120 can be loosened to facilitate foot entry and exit. Further, the upper 120 includes a tongue 124 that extends below the lace 122 and the lace opening 123 to enhance the comfort of the footwear 100. In a further configuration, the upper 120 comprises (a) a heel counter in the heel region 103 that enhances stability, (b) a toe guard in the toe region 101 formed of an abrasion resistant material, and (c) a logo; It may include additional elements such as trademarks and tags with notes and material information.

  Many conventional footwear uppers are formed from a plurality of material elements (eg, fabric, polymer foam, polymer sheet, leather, synthetic leather) that are joined together, for example, by sewing or gluing. In contrast, most of the upper 120 is formed from a knit component 130 that passes along each of the outer side 104 and the inner side 105 through each of the regions 101-103, It extends above the foot region 101 and around the heel region 103. In addition, the knit component 130 forms portions of both the outer surface of the upper 120 and the opposing inner surface. Thus, the knitted component 130 defines at least a portion of the cavity in the upper 120. In some configurations, the knitted component 130 may also extend under the foot. However, referring to FIGS. 4A-4C, a strobed insole 125 is secured to the knit component 130 and the top surface of the midsole 111, thereby providing a portion of the upper 120 that extends below the insole 113. Forming part.

Knit Component Configuration In FIGS. 5 and 6, the knit component 130 is illustrated separately from the rest of the footwear 100. The knit component 130 is formed from an integral knit structure. As used herein and in the claims, a knitted component (eg, knitted component 130) is defined as being formed of a “unitary knit structure” when formed as a one-piece element by a knitting process. That is, the knitting process substantially forms the various shapes and structures of the knitted component 130 without requiring significant additional manufacturing steps or processes. A unitary knit structure includes a course of one or more yarns, or the structure or element includes at least one common course (ie, shares a common yarn), and / or of those structures or elements It may be used to form a knit component having a structure or element that includes other knit materials joined to include a course that is substantially continuous between each other. With this configuration, a one-piece element is provided that comprises a unitary knit structure. The portions of the knitted component 130 may be joined together after the knitting process (eg, the edges of the knitted component 130 are joined together), since the knitted component 130 is formed as a one-piece knit element. Still, it is still formed with an integral knit structure. Also, the knit component 130 is still a one-piece knit structure even if other elements (eg, laces 122, tongues 124, logos, trademarks, notes with material information and material information) are added after the knitting process. Is still formed.

  The main elements of the knit component 130 are a knit element 131 and an inlay strand 132. The knit element 131 is formed from at least one yarn that is manipulated (eg, using a knitting machine) to form a plurality of interlocking loops that define various courses and wales. That is, the knit element 131 has a knit fabric structure. The inlay strand 132 extends through the knit element 131 and passes between the various loops in the knit element 131. The inlay strand 132 generally extends along a course in the knit element 131, but the inlay strand 132 may extend along a wale in the knit element 131. The advantages of inlay strand 132 include the ability to achieve support, stability and structure. For example, the inlay strand 132 helps secure the upper 120 around the foot, restricts deformation in the area of the upper 120 (eg, provides stretch resistance), and in conjunction with the laces 122, the footwear Increase the fit of 100.

  The knit element 131 has a substantially U-shaped configuration that is outlined by a peripheral edge 133, a pair of heel edges 134 and an inner edge 135. When incorporated into the footwear 100, the peripheral edge 133 is pressed against the upper surface of the midsole 111 and joined to the strobed insole 125. The heel edges 134 are joined together and extend vertically in the heel region 103. In some configurations of footwear 100, the material elements may cover the seam between heel edges 134 to reinforce the seam and enhance the aesthetic appeal of footwear 100. The inner edge 135 forms an ankle opening 121 and extends forward to the area where the lace 122, lace opening 123 and tongue 124 are located. In addition, the knit element 131 has a first surface 136 and an opposite second surface 137. The first surface 136 forms part of the outer surface of the upper 120, whereas the second surface 137 forms part of the inner surface of the upper 120, thereby cavities within the upper 120. Defines at least part of

  As described above, the inlay strand 132 extends through the knit element 131 and passes between the various loops in the knit element 131. More specifically, the inlay strand 132 is disposed within the knit structure of the knit element 131, the knit structure being in the area of the inlay strand 132, as illustrated in FIGS. 7A-7D, and You may have the structure which consists of a single fabric layer between the surface 136 and the surface 137. FIG. Therefore, when the knit component 130 is incorporated into the footwear 100, the inlay strand 132 is disposed between the outer surface and the inner surface of the upper 120. In some configurations, portions of the inlay strand 132 may be visible or exposed on one or both surfaces 136 and 137. For example, the inlay strand 132 may press against one of the surfaces 136 and 137, or the knitted element 131 may form a recess or opening through which the inlay strand passes. The advantage of placing the inlay strand 132 between the surfaces 136 and 137 is that the knit element 131 protects the inlay strand 132 from scratching and snuggling.

  Referring to FIGS. 5 and 6, the inlay strand 132 goes around the at least part of the lace opening 123 adjacent to the side of one opening 123 from the peripheral edge 133 toward the inner edge 135. , Repeatedly extending to the opposite side and back to the periphery 133. When the knitted component 130 is incorporated into the footwear 100, the knitted element 131 moves from the throat area of the upper 120 (ie, where the lace 122, lace opening 123 and tongue 124 are located) under the upper 120. It extends to the side area (ie where the knit element 131 meets the sole structure 110). In this configuration, the inlay strand 132 also extends from the throat area to the lower area. More specifically, the inlay strand repeatedly passes through the knit element 131 from the throat area to the lower area.

  The knit element 131 may be formed in various ways, but the course of the knit structure generally extends in the same direction as the inlay strand 132. That is, the course may extend in a direction extending between the throat area and the lower area. Accordingly, most of the inlay strand 132 extends along the course in the knit element 131. However, in the area adjacent to the lace opening 123, the inlay strand 132 may extend along a wale in the knitted element 131. More specifically, the section of the inlay strand 132 that is parallel to the inner edge 135 may extend along the wale.

  As described above, the inlay strand 132 repeatedly passes through the knit element 131. Referring to FIGS. 5 and 6, the inlay strand 132 repeatedly exits the knit element 131 at the periphery 133 and then reenters the knit element 131 at another position of the periphery 133, thereby A loop is formed along the portion 133. An advantage with this configuration is that each section of the inlay strand 132 extending between the throat area and the lower area can be independently tensioned, relaxed or otherwise adjusted during the manufacturing process of the footwear 100. That's what it means. That is, before fixing the sole structure 110 to the upper 120, the section of the inlay strand 132 can be independently adjusted to an appropriate tension.

  Compared to the knit element 131, the inlay strand 132 may exhibit greater stretch resistance. That is, the inlay strand 132 may not extend more than the knit element 131. Assuming that multiple sections of the inlay strand 132 extend from the throat area of the upper 120 to the lower area of the upper 120, the inlay strand 132 is stretch resistant to the portion of the upper 120 between the throat area and the lower area. Gives sex. Also, tension can be applied to the inlay strand 132 by applying tension to the lace 122, thereby guiding the portion of the upper 120 between the throat area and the lower area to rest on the foot. Also good. Accordingly, the inlay strand 132 works with the laces 122 to enhance the fit of the footwear 100.

  The knitted element 131 may incorporate various types of yarns that impart different properties to different areas of the upper 120. That is, an area of knit element 131 may be formed from a first type of yarn that imparts a first set of characteristics, and another area of knit element 131 may be formed of a second set of characteristics. You may form from the 2nd kind of yarn to provide. In this configuration, the characteristics of the entire upper 120 may be varied by selecting specific yarns for different areas of the knit element 131. The properties that a particular type of yarn will impart to a region of the knitted element 131 will depend in part on the materials forming the various filaments and fibers within the yarn. For example, cotton provides a soft hand, natural aesthetics, and biodegradability. Elastane and stretchable polyester provide significant stretch and resilience, respectively, and stretchable polyester also provides recyclability. Rayon is excellent in gloss and provides moisture absorption. Wool also provides high hygroscopicity in addition to thermal insulation and biodegradability. Nylon is a durable, scratch-resistant material with relatively high strength. Polyester is a hydrophobic material that provides relatively high durability. In addition to the material, other aspects selected for the knit element 131 can affect the properties of the upper 120. For example, the yarn forming the knitted element 131 can be a monofilament yarn or a multifilament yarn. The yarn may also include separate filaments formed from different materials. In addition, the yarn may include filaments formed of two or more different materials each, such as a sheath yarn or a composite yarn using filaments having two halves formed of different materials. Good. Different degrees of twisting and crimping and different deniers can also affect the properties of the upper 120. Thus, both the material forming the yarn and the other side of the yarn may be selected to impart different properties to different areas of the upper 120.

  Similar to the yarn forming the knitted element 131, the configuration of the inlay strand 132 may vary significantly. In addition to yarns, inlay strands 132 may have a configuration consisting of, for example, filaments (eg, single fibers), threads, ropes, strips, cables or chains. Compared to the yarn forming the knitted element 131, the inlay strand 132 may be thicker. In some configurations, the inlay strand 132 may have a thickness that is significantly greater than the yarn of the knitted element 131. The cross-sectional shape of the inlay strand 132 may be round, but a triangular shape, a square shape, a rectangular shape, an elliptical shape, or an irregular shape may be used. The material forming the inlay strand 132 may also include any of the yarn materials in the knitted element 131, such as cotton, elastane, polyester, rayon, wool and nylon. As described above, the inlay strand 132 may exhibit greater stretch resistance than the knit element 131. Thus, suitable materials for inlay strand 132 include a variety of engineering filaments utilized in high tensile strength applications, including glass, aramid (eg, para-aramid and meta-aramid), ultra high molecular weight polyethylene, and liquid crystal polymers. But you can. As another example, a polyester braid may be used as the inlay strand 132.

  An example of a configuration suitable for a portion of the knit component 130 is illustrated in FIG. 8A. In this configuration, the knit element 131 includes yarns 138 that form a plurality of interlocking loops that define a plurality of horizontal courses and vertical wales. The inlay strands 132 extend along one of the courses and are alternately disposed (a) behind the loop formed from the yarn 138 and (b) before the loop formed from the yarn 138. . In practice, the inlay strand 132 is threaded through the structure formed by the knit element 131. In this configuration, the yarns 138 form each of the courses, but additional yarns may form one or more courses, or form part of one or more courses. Good.

  Another embodiment of a configuration suitable for a portion of the knit component 130 is illustrated in FIG. 8B. In this configuration, the knit element 131 includes a yarn 138 and another yarn 139. Yarns 138 and 139 are spliced together to jointly form a plurality of interlocking loops that define a plurality of horizontal courses and vertical wales. That is, the yarns 138 and 139 extend parallel to each other. Similar to the configuration of FIG. 8A, the inlay strand 132 extends along one of the courses, (a) behind the loop formed from the yarns 138 and 139, and (b) from the yarns 138 and 139. Alternatingly arranged between before and after the formed loop. The advantage of this configuration is that the respective characteristics of yarns 138 and 139 may be present in this area of knit component 130. For example, if the color of the yarn 138 appears mainly on the surface of the various stitches of the knitted element 131 and the color of the yarn 139 appears mainly on the back of the various stitches of the knitted element 131, the yarns 138 and 139 are different colors. You may have. As another example, if the yarn 138 appears primarily on the first surface 136 and the yarn 139 appears primarily on the second surface 137, the yarn 139 is softer than the yarn 138 and more resistant to the foot. It may be formed from a comfortable yarn.

  Continuing with the configuration of FIG. 8B, the yarn 138 may be formed from at least one of a thermosetting polymer and natural fibers (eg, cotton, wool, silk), while the yarn 139 is a thermoplastic polymer. You may form from a material. In general, thermoplastic polymer materials melt when heated and return to a solid state when cooled. More specifically, a thermoplastic polymer material transitions from a solid state to a softened or liquid state when subjected to sufficient heat, and a thermoplastic polymer material softens or liquids when sufficiently cooled. Transition from state to solid state. Thus, thermoplastic polymer materials are often used to join two objects or elements together. In this case, the yarn 139 may, for example, (a) one portion of the yarn 138 to another portion of the yarn 138, (b) the yarn 138 and the inlay strand 132 to each other, or (c) another element (eg, a logo , Trademarks, and tags with notes and material information) may be used to join the knit component 130. Thus, yarn 139 may be considered a fusible yarn if it may be used to fuse or otherwise join portions of knitted component 130 together. Also, the yarn 138 may generally be considered a non-fusible yarn if it is not formed from a material that allows the portions of the knitted component 130 to be fused or otherwise joined together. That is, the yarn 138 may be a non-fusible yarn, while the yarn 139 may be a fusible yarn. In some configurations of the knitted component 130, the yarn 138 (ie, non-fusible yarn) may be formed from a substantially thermoset polyester material and the yarn 139 (ie, fusible yarn). ) May be at least partially formed from a thermoplastic polyester material.

  The use of spliced yarn can provide benefits to the knit component 130. If the yarn 139 is heated and fused to the yarn 138 and the inlay strand 132, this process may have the effect of making the structure of the knit component 130 stiff or stiff. Also, (a) one portion of the yarn 138 can be joined to another portion of the yarn 138, or (b) the yarn 138 and the inlay strand 132 can be joined together by relative positioning of the yarn 138 and the inlay strand 132. There is an effect of fixing or locking, thereby imparting stretch resistance and rigidity. That is, the portions of the yarn 138 do not slip relative to each other when fused to the yarn 139, thereby preventing twisting or permanent elongation of the knit element 131 due to relative movement of the knit structure. Another advantage involves limiting fraying if a portion of the knit component 130 is damaged or one of the yarns 138 breaks. Also, the inlay strand 132 does not slip relative to the knit element 131, thereby preventing the portion of the inlay strand 132 from being pulled outward from the knit element 131. Accordingly, the area of the knitted component 130 will benefit from the use of both fusible and non-fusible yarns within the knitted element 131.

  Another side of the knitted component 130 involves a padded area that is adjacent to and extends at least partially around the ankle opening 121. Referring to FIG. 7E, the padded area may be formed of a unitary knit structure, two overlapping knitted layers 140 that are at least partially coextensive, and a plurality extending between the knitted layers 140. The floating yarn 141 is formed. The sides or edges of the knitted layer 140 are fixed to each other, but the central area is generally not fixed. Therefore, the knit layer 140 effectively forms a tube or a cylindrical structure, and the floating yarn 141 (FIG. 7E) is disposed between the knit layers 140 so as to penetrate the cylindrical structure, Or it may be inserted. That is, the floating yarn 141 extends between the knitted layers 140, is generally parallel to the surface of the knitted layer 140, and penetrates between the knitted layers 140 to fill the inner space. Most of the knitted elements 131 are formed from yarns that are machined to form interlocking loops, whereas the floating yarns 141 are generally free in the internal space between the knitted layers 140. Or is inserted into the interior space in another form. As an additional matter, the knitted layer 140 may be at least partially formed from stretch yarn. The advantage of this configuration is that the knit layer effectively compresses the floating yarn 141 and provides elastic properties to the padded area adjacent to the ankle opening 121. That is, the stretch yarns in the knit layer 140 are placed in tension during the knitting process that forms the knit component 130, thereby inducing the knit layer 140 to compress the floating yarn 141. Good. Although the degree of stretch of the stretch yarn may vary significantly, in many configurations of the knit component 130, the stretch yarn may stretch at least a hundred percent.

  The presence of the floating yarn 141 imparts a compressible property to the padded area adjacent to the ankle opening 121, thereby increasing the comfort of the footwear 100 in the area of the ankle opening 121. Many conventional footwear products incorporate polymer foam elements or other compressible materials in the area adjacent to the ankle opening. In contrast to conventional footwear products, the portion of the knitted component 130 formed of a unitary knitted structure, together with the rest of the knitted component 130, may form a padded area adjacent to the ankle opening 121. it can. In further configurations of the footwear 100, other padded areas may be provided in other areas of the knitted component 130. For example, a similar padded area may be provided as an area corresponding to the joint between the metatarsal bone and the proximal phalanx in order to apply a pad to the joint. Alternatively, a terry loop structure may be utilized to provide some padding in the upper 120 area.

  Based on the above description, the knit component 130 imparts various shapes to the upper 120. Knit component 130 also provides various advantages over some conventional upper configurations. As described above, a conventional footwear upper is formed of a plurality of material elements (for example, fabric, polymer foam, polymer sheet, leather, synthetic leather) joined together by sewing or adhesion, for example. As the number and type of material elements incorporated into the upper increases, the time and cost associated with transporting, storing, cutting and joining the material elements may also increase. Waste material from the cutting and sewing process also accumulates as the number and type of material elements incorporated into the upper increases. Further, an upper having a large number of material elements may be more difficult to recycle than an upper formed from material elements having a small number and types. Therefore, by reducing the number of material elements used for the upper, waste can be reduced while improving the manufacturing efficiency and recyclability of the upper. For this reason, the knit component 130 forms a significant portion of the upper 120 while increasing manufacturing efficiency, reducing waste, and simplifying recyclability.

Knitting Machine and Feeder Configuration Although knitting may be done by hand, the commercial production of knitted components is often performed by a knitting machine. One embodiment of a knitting machine 200 suitable for producing a knitted component 130 is shown in FIG. The knitting machine 200 has a configuration of a V-bed flat knitting machine for illustration, but the knitting machine 200 may have a different configuration without departing from the scope of the present disclosure.

  The knitting machine 200 includes two needle beds 201 forming a V bed by forming an angle with respect to each other. Each of the needle beds 201 includes a plurality of individual needles 202 that lie on a common plane. That is, the needle 202 from one needle bed 201 is in the first plane, and the needle 202 from the other needle bed 201 is in the second plane. The first plane and the second plane (ie, the two needle beds 201) are angled with respect to each other and intersect to form an intersection that extends along most of the width of the knitting machine 200. ing. As described in detail below and as shown in FIGS. 19-21, the needles 202 are each in a first position (indicated by a solid line) where the needles are retracted and the needles are extended. And a second position (indicated by a broken line). In the first position, the needle 202 is away from the intersection where the first plane and the second plane intersect. However, in the second position, the needle 202 passes through the intersection where the first plane and the second plane intersect.

  A pair of rails 203 extend above the intersection of the needle bed 201 in parallel with the intersection and form attachment points for the plurality of first feeders 204 and combination feeders 220. Each rail 203 has two sides, each of which accommodates either one first feeder 204 or one combination feeder 220. Accordingly, the knitting machine 200 may include a total of four feeders 204 and 220. As shown, the front row of rails 203 includes one combination feeder 220 and one first feeder 204 on opposite sides, and the last row of rails 203 includes two first Feeder 204 is included on the opposite side. Although two rails 203 are shown, further configurations of the knitting machine 200 may incorporate additional rails 203 to form attachment points for more feeders 204 and 220.

  The knitting machine 200 also includes a carriage 205 that can move on the needle bed 201 substantially parallel to the longitudinal axis of the rail 203. The carriage 205 can include one or more drive bolts 219 (FIGS. 17 and 18) that can be movably attached to the underside of the carriage 205. In FIG. 18, the drive bolt 219 can be selectively extended downward and retracted upward as indicated by arrow 402. Therefore, the drive bolt 219 can move with respect to the carriage 205 between the extended position (FIG. 18) and the retracted position (FIG. 17).

  The carriage 205 can include any number of drive bolts 219, and each drive bolt 219 can be positioned to selectively engage a different one of the feeders 204, 220. For example, FIGS. 17 and 18 illustrate how the drive bolt 219 can be operably engaged with the combination feeder 220. When the bolt 219 is in the retracted position (FIG. 17), the carriage 205 can move along the rail 203 to bypass the feeder 220. However, when the bolt 219 is in the extended position (FIG. 18), the bolt 219 can contact the surface 253 of the feeder 220. As a result, when the bolt 219 is extended, the movement of the carriage 205 can drive the movement of the feeder 220 along the axis of the rail 203.

  Further, in relation to the combination feeder 220, the drive bolt 219 can supply a force that moves the combination feeder 220 toward the needle bed 201 (for example, downward). Hereinafter, these operations will be described in detail.

  The feeders 204, 220 can supply yarn to the needle 202 as the feeders 204, 220 move along the rail 203. In FIG. 9, the yarn 206 is supplied to the combination feeder 220 by the spool 207. More specifically, the yarn 206 extends from the spool 207 to the various yarn guides 208, the yarn tension springs 209 and the yarn tensioner 210 before entering the combination feeder 220. Although not shown, an additional spool 207 may be utilized to supply the yarn to the first feeder 204.

  Furthermore, the first feeder 204 can also supply the needle bed 201 with yarns that the needles 202 operate to knit, tuck and float. For comparison, the combination feeder 220 has the ability to supply yarns (eg, yarn 206) that the needles 202 knit, tuck and float, and the combination feeder 220 has the ability to insert the yarns. . The combination feeder 220 also has the ability to insert a variety of different strands (eg, filaments, threads, ropes, strips, cables, chains or yarns). The feeders 204 and 220 were filed on March 15, 2011 and published as Patent Document 1 on September 20, 2012, US Patent Application No. 13/048 entitled “Combination Feeder for a Knitting Machine”. , 527, which may also incorporate one or more of the functions of the feeder, the specification of which is hereby incorporated by reference in its entirety.

  Next, the combination feeder 220 will be described in detail. As shown in FIGS. 10 to 13, the combination feeder 220 can include a carrier 230, a feeder arm 240, and a pair of actuating members 250. Most of the combination feeder 220 may be formed from a metallic material (eg, steel, aluminum, titanium), while the carrier 230, feeder arm 240 and actuating member 250 portions are formed from, for example, a polymer, ceramic or composite material. May be. As described above, the combination feeder 220 may be utilized when inserting yarns or other strands in addition to knitting, tucking and float knitting yarns. With particular reference to FIG. 10, a portion of the yarn 206 is depicted to illustrate how the strands interface with the combination feeder 220.

  The carrier 230 has a substantially rectangular structure, and includes a first cover member 231 and a second cover member 232 that are joined by four bolts 233. Cover members 231 and 232 define an internal cavity in which a portion of feeder arm 240 and actuating member 250 are disposed. The carrier 230 also includes a mounting element 234 that extends outwardly from the first cover member 231 to secure the feeder 220 to one of the rails 203. Although the configuration of the mounting element 234 may vary, the mounting element 234 is illustrated as including two spaced overhang areas that form a dovetail shape as shown in FIG. The inverted pigtail structure of one of the rails 203 may extend to the dovetail shape of the mounting element 234 in order to effectively join the combination feeder 220 to the knitting machine 200. It should also be noted that the second cover member 234 forms a central elongated slot 235, as shown in FIG.

  The feeder arm 240 has a generally elongate structure that extends outwardly from the lower surface of the carrier 230 through the carrier 230 (ie, the cavity between the cover members 231 and 232).

  As shown in FIGS. 10 and 13, the feeder arm 240 includes an operating bolt 241, a spring 242, a pulley 243, a loop 244, and a yarn feeding area 245. The operating bolt 241 extends outward from the feeder arm 240 and is disposed in the cavity between the cover members 231 and 232. Further, one side of the operating bolt 241 is also disposed in the slot 235 of the second cover member 232 as shown in FIG. The spring 242 is fixed to the carrier 230 and the feeder arm 240. More specifically, one end of the spring 242 is fixed to the carrier 230, and the opposite end of the spring 242 is fixed to the feeder arm 240. Pulley 243, loop 244 and yarn feed area 245 are present on feeder arm 240 to interface with yarn 206 or another strand. In addition, the pulley 243, loop 244 and yarn feeding section 245 are configured to ensure that the yarn 206 or another strand passes smoothly through the combination feeder 220 and is thereby supplied to the needle 202. Referring again to FIG. 10, the yarn 206 extends around the pulley 243 and extends through the loop 244 to the yarn feeding area 245. In addition, the yarn feed section 245 can terminate at the yarn feed tip 246, and the yarn 206 can extend out of the yarn feed tip 246 to be fed to the needle 202 of the needle bed 201. it can. However, it will be appreciated that the feeder 220 could be configured differently, and that the feeder 220 could be configured for operation on the needle bed 201 in different ways without departing from the scope of the present disclosure. It will be.

  Further, in some embodiments, the feeder 220 can be provided with one or more features configured to assist in the insertion of yarns or other strands into the knitted component. Their shape configuration may also assist in incorporating the strands into the knitted component in other ways during the knitting process. For example, as shown in FIGS. 10-13, the feeder 220 can include at least one pushing member 215 that is operably supported by the feeder arm 240. Pushing member 215 can push the knit component to assist in inserting a yarn or other strand therein, as described below.

  In the illustrated embodiment, the pushing member 215 includes a first protrusion 216 and a second protrusion 217 that protrude from opposite sides of the yarn feed tip 246. In other words, the yarn supplying tip 246 can be defined by being disposed between the first protrusion 216 and the second protrusion 217. Further, the opening groove 223 (FIG. 11) can be defined together by the inner side surfaces of the protruding portions 216 and 217 and the yarn feeding tip end portion 246.

  As described, the feeder 220 can be supported on a rail 203 (FIG. 9) of the knitting machine 200 and the feeder 220 can move along the axis of the rail 203. Thus, the groove 223 can extend substantially parallel to the longitudinal axis of the rail 203, ie, substantially parallel to the direction of movement of the feeder 220. In other words, the protrusions 216, 217 can be spaced from the yarn feed tip 246 in the opposite direction and substantially perpendicular to the direction of movement of the feeder 220.

  In some embodiments, the protrusions 216, 217 are used to insert yarns or other strands and / or to facilitate incorporation of the strands into the knitted component otherwise. It may have a shape that is configured to further assist in pushing the knit component. For example, the protrusions 216 and 217 may be tapered. The protrusions 216, 217 can be tapered to substantially coincide with the sides of the yarn feeding area 245 (see FIGS. 10, 12, and 13). Also, the protrusions 216, 217 can each include a convex rounded end 224. The end 224 can be curved three-dimensionally (eg, in a hemispherical shape). In additional embodiments, the end 224 can be curved in two dimensions.

  As shown in FIG. 11, each protrusion 216, 217 protrudes generally downward from the yarn feed tip 246 by a distance 218 (FIG. 11) so that the knit component can be pushed during the knitting process. . The distance 218 can have any suitable value, for example, a value from about 1 mil (0.0254 millimeter) to about 5 millimeters. Each protrusion 216, 217 can protrude by substantially the same distance 218, as shown, or in additional embodiments, the protrusions 216, 217 protrude by different distances. be able to. Further, in some embodiments, the protrusions 216, 217 can be movably attached to the feeder arm 240 such that the distance 218 is selectively adjustable. For example, in some embodiments, the protrusions 216, 217 can have multiple setting positions relative to the yarn feed tip 213, so that the user of the knitting machine 200 can project the protrusions 216, 217 from the tip 213. The protruding distance 218 can be selected.

  The protrusions 216, 217 can be formed from any suitable material. For example, in some embodiments, the protrusions 216, 217 can be formed from and / or include metallic materials such as steel, titanium, aluminum, and the like. Also, in some embodiments, the protrusions 216, 217 can be formed from a polymeric material. Further, in some embodiments, the protrusions 216, 217 can be at least partially formed of a ceramic material so that the protrusions 216, 217 can have high strength and a low surface It can have roughness. Thus, the protrusions 216, 217 do not risk damaging the yarn 206 and / or the knit component 130 during use of the feeder 220.

  In some embodiments, the protrusions 216, 217 can be integrally connected to the yarn feeding area 245 for robustness. For example, the yarn feeding area 245 and the protrusions 216, 217 can be formed together in a common mold or machined from a block of material. In additional embodiments, the protrusions 216, 217 can be movably attached to the yarn feeding area 245 of the feeder 220 via fasteners, adhesives or other suitable methods.

  Returning to FIGS. 10 to 13, the operation member 250 of the feeder 220 will be described. Each actuation member 250 includes an arm 251 and a plate 252. Each of the arms 251 can be elongated and can define an outer end 253 and an opposite inner end 254. Each plate 252 can be flat and generally rectangular.

  In some configurations of the actuating member 250, each arm 251 is formed as a monolithic element with one of the plates 252. Arm 251 and / or plate 252 can be formed from metal, nylon, or other suitable material.

  The arm 251 can be provided outside the carrier 230 and above the carrier 230, and the plate 252 can be provided inside the carrier 250. The arm 251 is disposed so as to define a space 255 between the inner end portions 254. That is, both arms 251 are spaced apart from each other in the longitudinal direction. Also, as shown in FIG. 11, the arm 251 is arranged such that one arm 251 is disposed close to the first cover member 231 and the other arm 251 is disposed close to the second cover member 232. In this way, they can be separated in the lateral direction.

  The arm 251 can further include one or more features that assist in engaging and / or disengaging the drive bolt 219. The arm 251 can be formed in a shape that facilitates engagement and / or disengagement of the drive bolt 219. The arm 251 can also include other configurations that reduce friction during non-engagement. This can reduce the likelihood that the feeder 220 will cause stitching or other errors during the knitting process.

  For example, in the embodiment shown in FIGS. 10, 12, and 13, the outer end 253 of each arm 251 can be rounded and convex. In some embodiments, the end 253 can be curved two-dimensionally (ie, in the plane of FIGS. 10, 12 and 13). In additional embodiments, the end 253 can be hemispherical to be curved in three dimensions. In addition, both ends 253 can have a relatively low surface roughness. For example, in some embodiments, both ends 253 can be polished. Furthermore, both ends 253 can be treated with a lubricant. Also, the inner end 254 of the arm 251 is substantially flat in the illustrated embodiment, but the inner end 254 is similar to the outer end 253 shown in FIGS. 10, 12 and 13. Can be rounded and convex.

  Referring to FIG. 13, each of the plates 252 defines an opening 256 with an inclined edge 257. Further, the operating bolt 241 of the feeder arm 240 extends into each opening 256.

  The configuration of the combination feeder 220 described above provides a structure that facilitates the movement of the feeder arm 240. As will be described in more detail below, the movement movement of the feeder arm 240 selectively places the yarn feed tip 246 at a position above or below the intersection of the needle bed 201 (see FIGS. 20 and 20). Compare with 21). That is, the yarn feeding tip 246 has the ability to reciprocate through the intersection of the needle bed 201. The advantages associated with the moving movement of the feeder arm 240 are that the combination feeder 220 (a) yarns for knitting, tucking and float knitting when the yarn feed tip 246 is placed over the intersection of the needle bed 201. 206, and (b) when the yarn feed tip 246 is placed under the intersection of the needle bed 201, it supplies a yarn 206 or another strand for insertion. Furthermore, the feeder arm 240 reciprocates between these two positions depending on the method in which the combination feeder 220 is used.

  When reciprocating through the intersection of the needle bed 201, the feeder arm 240 moves from the retracted position to the extended position. When in the retracted position, the yarn supplying tip 246 is positioned above the intersection of the needle bed 201 (FIG. 20). When in the extended position, the yarn supplying tip 246 is located below the intersection of the needle bed 201 (FIG. 21). The yarn feeding tip 246 is closer to the carrier 230 when the feeder arm 240 is in the retracted position than when the feeder arm 240 is in the extended position. Similarly, the yarn feeding tip 246 is further away from the carrier 230 when the feeder arm 240 is in the extended position than when the feeder arm 240 is in the retracted position. In other words, when the yarn feeding tip 246 moves toward the extending position, it moves away from the carrier 230 toward the needle bed 201, and the yarn feeding tip 246 moves toward the retracted position. In the case, it approaches the carrier 230 and moves away from the needle bed 201.

  For illustrative purposes in FIGS. 13-16, an arrow 221 is disposed adjacent to the yarn feeding area 245. When the arrow 221 points up or points toward the carrier 230, the feeder arm 240 is in the retracted position. When the arrow 221 points down or points away from the carrier 230, the feeder arm 240 is in the extended position. Therefore, the position of the feeder arm 240 can be easily confirmed by referring to the position of the arrow 221.

  As shown in FIG. 13, the spring 242 can bias the feeder arm 240 toward the retracted position (that is, the neutral state of the feeder arm 240). The feeder arm 240 can move from the retracted position to the extended position when a sufficient force is applied to one of the arms 251. More specifically, the feeder arm 240 is stretched when sufficient force 222 is applied to one outer end 253 and directed toward the space 255 (see FIGS. 14 and 15). ). Accordingly, the feeder arm 240 moves to the extended position as indicated by the arrow 221. However, when the force 222 is removed, the feeder arm 240 will return to the retracted position by the biasing force of the spring 242. It should also be noted that FIG. 16 depicts the force 222 when acting on the inner end 254 and directed outward. As a result, the feeder 220 moves horizontally (along the rail 203), but the feeder arm 240 remains in the retracted position.

  FIGS. 13-16 show the combination feeder 220 with the first cover member 231 removed, thereby exposing the components in the cavity of the carrier 230. FIG. A comparison of FIG. 13 with FIGS. 14 and 15 can reveal how the force 222 guides the feeder arm 240 to extend and retract. When the force 222 acts on one of the outer ends 253, one of the actuating members 250 slides in a direction perpendicular to the length of the feeder arm 240. That is, one actuating member 250 slides in the horizontal direction of FIGS. The movement of one actuating member 250 causes the actuating bolt 241 to engage one of the inclined edges 257. Assuming that the movement of the actuating member 250 is limited in a direction perpendicular to the length of the feeder arm 240, the actuating bolt 241 rotates or slides into contact with the inclined edge 257 and extends the feeder arm 240. Guide to move to position. When the force 222 is removed, the spring 242 pulls the feeder arm 240 from the extended position to the retracted position.

Movement of the Feeder with respect to the Needle Bed As described above, the feeders 204 and 220 move on the needle bed 201 along the rail 203 by the operation of the carriage 205 and the drive bolt 219. More specifically, each drive bolt 219 extending from the carriage 205 can contact the feeders 204 and 220 and push the feeders 204 and 220 along the rail 203 to move onto the needle bed 201. . More specifically, as shown in FIG. 18, the drive bolt 219 can extend downward from the carriage 205 and the horizontal movement of the carriage 205 pushes the drive bolt 219 into contact with the outer end 253. Thereby, the feeder 220 can be moved in the horizontal direction in conjunction with the carriage 205. Alternatively, the drive bolt 219 can abut one of the inner ends 254 to move the feeder 240 along the rail 203. The drive bolt 219 can selectively push the arm of the first feeder 204 (like the drive bolt 219 that pushes the arm 251 of the combination feeder 220) to move the first feeder 204 onto the needle bed 201. . As a result of this movement, the feeders 204, 220 can be used to feed the yarn 206 or other strands toward the needle bed 201 to produce the knitted component 130.

  With respect to the combination feeder 220, the drive bolt 219 can also move the feeder arm 240 from the retracted position toward the extended position. As shown in FIG. 18, when the drive bolt 219 comes into contact with one outer end 253 and pushes the outer end 253, the feeder arm 240 moves to the extended position. As a result, the yarn supplying tip 246 passes under the intersecting portion of the needle bed 201 as shown in FIG.

  Then, the drive bolt 219 can move from the extended position (FIG. 18) to the retracted position (FIG. 17) to release the engagement with the end 253. The spring 242 can bias the feeder 220 back to the retracted position as a result indicated by the arrow 221 in FIG.

  It will be appreciated that the frictional force can prevent the drive bolt 219 from disengaging from the end 253 of the feeder 220. Also, in the case of the combination feeder 220, the return force of the spring 242 and / or the tension of the yarn 206 pushes the end 253 against the bolt 219 with a considerable force, thereby enhancing the frictional engagement with the bolt 219. Can do. If the bolt 219 fails to disengage, the feeder 220 may erroneously stay in the extended position, the bolt 219 may move excessively in the longitudinal direction, etc. and the knit component May form incorrectly. However, the rounded convex shape of the end 253 can facilitate release of the bolt 219 from engagement with the end 253. This is because the convex and rounded surface of the end portion 253 can reduce the contact area between the drive bolt 219 and the end portion 253. Polishing the end 253 and / or applying a lubricant to the end 253 can also reduce friction. Thus, the drive bolt 219 can better disengage from the end 253, the feeder 220 can operate more accurately and efficiently, and can increase the speed of the knitting process. . Furthermore, the drive bolt 219 and / or the end 253 are less likely to wear over time after being repeatedly disengaged from each other.

  Similar to the end 253 described in detail herein, the inner end 254 can be curved and convex, polished, and treated with a lubricant or other method. It will also be recognized correctly what can be done. Accordingly, similarly, the drive bolt 219 can disengage the end 254 more efficiently. In addition, the first feeder 204 can include an actuating member with a rounded convex end similar to the end 253 described in detail herein. An embodiment of the first feeder 204 with a rounded end 253 is shown, for example, in FIG.

  FIG. 31 also shows an additional embodiment of a combination feeder 1220 that can disengage from the drive bolt 1219 with higher efficiency. The feeder 1220 can be substantially the same as the feeder 220 described above. However, the feeders 1220 can each include an actuating member 1250 with a base arm 1251 and a bearing 1225. The bearing 1225 may be a barrel-shaped wheel that is rotatably attached to the base arm 1251. The outer radial surface of the bearing 1225 can define a convexly curved outer end 1253 of the actuating member 1250. The bearing 1225 can rotate relative to the arm 1251 when the drive bolt 1219 is disengaged from the feeder 1220. Therefore, the engagement between the drive bolt 1219 and the feeder 1220 can be easily released. It will be appreciated that the first feeder 204 includes a similar bearing 1225, thereby reducing frictional engagement with the drive bolt 1219. It will also be appreciated that the inner end 1254 can include a similar bearing 1225.

Knitting Process Next, the method by which the knitting machine 200 operates to manufacture the knitted component 130 will be described in detail. The following description will also demonstrate the operation of the first feeder 204 and the combination feeder 220 during the knitting process. Referring to FIG. 22, a portion of a knitting machine 200 including various needles 202, rails 203, a first feeder 204, and a combination feeder 220 is illustrated. The combination feeder 220 is fixed to the front side of the rail 203, while the first feeder 204 is fixed to the rear side of the rail 203. The yarn 206 passes through the combination feeder 220, and an end portion of the yarn 206 extends outward from the yarn feeding front end portion 246. Although a yarn 206 is illustrated, any other strand (eg, filament, thread, rope, strip, cable, chain or yarn) can pass through the combination feeder 220. Another yarn 211 passes through the first feeder 204 to form part of the knit component 260 and the loop of yarn 211 forming the top course of the knit component 260 is the end of the needle 202. It is held by a hook provided on.

  The knitting process described herein relates to the formation of the knit component 260, which includes any knit component that includes a knit component similar to the knit component 130 described with respect to FIGS. It may be. For illustrative purposes, only a relatively small portion of the knit component 260 is shown in the drawing to allow the knit structure to be illustrated. Further, the scale and ratio of the various elements of knitting machine 200 and knitted component 260 may be increased to better describe the knitting process.

  The first feeder 204 includes a feeder arm 212 having a yarn feeding tip 213. The feeder arm 212 is angled so that the yarn feeding tip 213 is disposed at a position (a) at the center between the needles 202 and (b) above the intersection of the needle bed 201. It has been. FIG. 19 shows a schematic cross-sectional view of this configuration. Note that the needles 202 are on different planes that are angled with respect to each other. That is, the needles 202 from the needle bed 201 are on different planes. Needle 202 has a first position and a second position, respectively. In the first position illustrated by the solid line, the needle 202 is retracted. In the second position, indicated by the dotted line, the needle 202 is extended. In the first position, the needle 202 is spaced from the intersection of the planes on which the needle bed 201 rests. However, in the second position, the needle 202 is extended and the needle bed 201 passes through the intersection of the planes above it. That is, the needles 202 intersect each other when extended to the second position. It should be noted that the yarn feed tip 213 is located above the intersection of these planes. In this position, the yarn feed tip 213 feeds the yarn 211 to the needle 202 for knitting, tucking and float knitting.

  The combination feeder 220 is in the retracted position, as is apparent from the direction of the arrow 221 in FIG. The feeder arm 240 has a carrier 230 in order to place the yarn feeding tip 246 at a position (a) at the center between the needles 202 and (b) above the intersection of the needle bed 201. Extending downward from FIG. 20 shows a schematic cross-sectional view of this configuration.

  Referring now to FIG. 23, the first feeder 204 moves along the rail 203 and a new course is formed from the yarn 211 into the knitted component 260. More specifically, the needle 202 pulls the section of yarn 211 through the loop of the previous course, thereby forming a new course. Accordingly, by moving the first feeder 204 along the needle 202, thereby allowing the needle 202 to manipulate the yarn 211 to form an additional loop from the yarn 211, the knit component Courses can be added to 260.

  Continuing with the knitting process, the feeder arm 240 then moves from the retracted position to the extended position, as shown in FIG. In the extended position, the feeder arm 240 places the yarn feeding tip 246 at (a) a position that is the center between the needles 202 and (b) a position that is below the intersection of the needle bed 201. Further, it extends downward from the carrier 230. FIG. 21 shows a schematic cross-sectional view of this configuration. It should be noted that the yarn supplying tip 246 is positioned below the position of the yarn supplying tip 246 in FIG. 22B due to the movement of the feeder arm 240.

  Referring now to FIG. 25, the combination feeder 220 moves along the rail 203 and the yarn 206 is placed between the loops of the knit component 260. That is, the yarns 206 are arranged in an alternating pattern in front of some loops and behind the other loops. Further, the yarn 206 is placed in front of a loop held by a needle 202 from one needle bed 201, and the yarn 206 is of a loop held by a needle 202 from the other needle bed 201. It is arranged at the rear. Note that the feeder arm 240 still remains in the extended position to place the yarn 206 in the area below the intersection of the needle bed 201. Accordingly, in FIG. 23, the yarn 206 is efficiently arranged in the course formed immediately before by the first feeder 204.

  Also note that the protrusions 216, 217 of the feeder 220 can push away the yarn 211 in the course formed just before the knit component 260 as the feeder 220 moves across the knit component 260. I want to be. Specifically, as shown in FIG. 21, the protrusions 216, 217 push the knitted yarn 211 in the horizontal direction (as indicated by the arrow 225) to widen the course and insert the yarn 206 for insertion. A sufficient gap can be provided. In some embodiments, the protrusions 216, 217 can also push the knitted yarn 211 downward. Accordingly, even when the yarns 211 and 206 have a relatively large diameter, the yarn 206 can be efficiently disposed within the course of the knit component 260. Also, since the ends of the protrusions 216, 217 are rounded, the protrusions 216, 217 can assist in preventing the yarn 211 from being torn or otherwise damaged. it can.

  To complete inserting the yarn 206 into the knitted component 260, the first feeder 204 moves along the rail 203 to form a new course from the yarn 211, as shown in FIG. By forming a new course, the yarn 206 is efficiently knitted into the structure of the knitted component 260 or otherwise integrated into the structure. At this stage, the feeder arm 240 may move from the extended position to the retracted position.

  The general knitting process outlined in the above description provides an example of how the inlay strand 132 can be placed in the knitted element 131. More specifically, the knit component 130 can be formed by efficiently inserting the inlay strands 132 and 152 into the knit element 131 using the combination feeder 220. On the premise of the reciprocating motion of the feeder arm 240, an inlay strand may be arranged in the course formed immediately before the formation of a new course.

  Continuing with the knitting process, the feeder arm 240 then moves from the retracted position to the extended position, as shown in FIG. Next, the combination feeder 220 moves along the rail 203, and the yarn 206 is disposed between the loops of the knit component 260 as shown in FIG. Thereby, in FIG. 26, the yarn 206 is efficiently arranged in the course formed by the first feeder 204. Again, the protrusions 216, 217 can form a space for inserting the yarn 206 by pushing the yarn 211 into the course. To complete the insertion of the yarn 206 into the knit component 260, the first feeder 204 moves along the rail 203 to form a new course from the yarn 211, as shown in FIG. By forming a new course, the yarn 206 is efficiently knitted into the structure of the knitted component 260 or otherwise integrated into the structure. At this stage, the feeder arm 240 may be moved from the extended position to the retracted position.

  Referring to FIG. 29, the yarn 206 forms a loop 214 between two inlay sections. In the description of the knit component 130 above, the inlay strand 132 repeatedly exits the knit element 131 at the peripheral edge 133 and then reenters the knit element 131 at another position of the peripheral edge 133, thereby allowing the FIG. As shown in FIG. 6, it was noted that a loop was formed along the peripheral portion 133. The loop 214 is formed in the same way. That is, the loop 214 is formed where the yarn 206 reenters the knit structure after leaving the knit structure of the knit component 260.

  As described above, the first feeder 204 has the ability to supply strands (eg, yarn 211) that the needle 202 manipulates to knit, tuck and float. However, the combination feeder 220 has the ability to supply a yarn (eg, yarn 206) into which the needle 202 is knitted, tucked, or float knitted and into which the yarn is inserted. The above description regarding the knitting process describes how the yarn is inserted while the combination feeder 220 is in the drawn position. The combination feeder 220 can also supply yarn for knitting, tacking, and float knitting while in the retracted position. For example, referring to FIG. 30, the combination feeder 220 moves along the rail 203 while in the retracted position to form a course of the knit component 260 while in the retracted position. Thus, by reciprocating the feeder arm 240 between the retracted position and the extended position, the combination feeder 220 can supply the yarn 206 for knitting, tucking, float knitting and insertion.

  Following the knitting process described above, various operations may be performed to enhance the properties of the knitted component 130. For example, a water repellent coating or other water resistant treatment may be applied to limit the ability of the knit structure to absorb and retain water. As another example, the knitted component 130 may be steamed to improve loft and induce yarn fusion.

  Although the processing procedures associated with the steam process can vary significantly, one method involves securing the knit component 130 to a jig during steam processing. The advantage of securing the knitted component 130 to the jig is that the resulting dimensions of a particular area of the knitted component 130 can be controlled. For example, a pin on the jig may be provided to hold the area corresponding to the peripheral edge 133 of the knit component 130. By maintaining certain dimensions for the peripheral portion 133, the peripheral portion 133 will have the correct length for the portion of the later process that joins the upper 120 to the sole structure 110. Thus, fixing the area of the knit component 130 can be used to control the resulting dimensions of the knit component 130 following the steam process.

  The knitting process for forming the knitted component 260 described above may be applied to the manufacture of the knitted component 130 for the footwear 100. The knitting process can also be applied to the manufacture of various other knitted components. That is, a knitting process using one or more combination feeders or other reciprocating feeders can be utilized to form various knit components. Thus, knitted components formed by the knitting process or similar processes described above can be used for other types of clothing (eg, shirts, pants, socks, outerwear, underwear), exercise equipment (eg, golf bags, baseball and It may be used for football gloves, soccer ball regulation structures), containers (eg, backpacks, bags) and furniture decorations (eg, chairs, sofas, car seats). Knit components may also be utilized for bed coverings (eg sheets, blankets), table coverings, towels, flags, tents, sails and parachutes. Knit components include structures for automotive and aerospace applications, filter materials, medical fabrics (eg bandages, swabs, implants), geotextiles to reinforce dikes, agricultural textiles to protect crops, And may be utilized as industrial technical textiles, including industrial clothing that protects or insulates from heat and radiation. Thus, knitted components formed by the knitting process described above or similar processes can be incorporated into a variety of products for both personal and industrial purposes.

Additional Shape Configuration for Feeder and Knitting Operation Referring now to FIG. 43, an additional embodiment of a combination feeder 3220 is illustrated. The feeder 3220 can be substantially the same as the feeder 220 described above in connection with FIGS. 10-21 unless otherwise noted.

  As described, the feeder 3220 of FIG. 43 can include one or more features that assist the knitting process. For example, the feeder 3220 can push the course knitted just before the yarn feed tip of the feeder 3220 in the feed direction of the feeder 3220. FIG. 43 is merely exemplary of various embodiments, and it will be appreciated that the feeder 3220 could be changed in one or more ways.

  The feeder 3220 can include a feeder arm 3240 having a first portion 3241 and a second portion 3249. The first portion 3241 can be attached to the carrier 3230 and can extend downward from the carrier 3230. The first portion 3241 can also include a pulley 3243. In addition, the second portion 3249 can be movably attached to the first portion 3241. For example, the first and second portions 3241, 3249 can be pivotally attached via hinges 3247, flexible joints or other suitable couplings. Further, a yarn feed area 3245 can be attached to the second portion 3249.

  The feeder 3220 can also include an enlarged end 3261. In some embodiments, the end 3261 can be bulbous. The end portion 3261 can be hollow to accommodate the tapered yarn feeding area 3245 of the feeder 3220 from above. In additional embodiments, the end 3261 can be integrally attached to the yarn feed area 3245. The end 3261 can include one or more protrusions 3262, 3264 that are rounded and convex. The protrusions 3262 and 3264 can be separated by a gap, and the yarn supplying tip 3246 can be disposed between the protrusions 3262 and 3264 as shown in FIG. In other words, the protrusions 3262, 3264 can be spaced in the opposite direction from the yarn feed tip 3246 which is substantially parallel to the direction of movement of the feeder 3220 along the rail of the knitting machine.

  Because the first and second portions 3241 and 3249 are movably attached, the feeder 3220 can have a first position (FIG. 44) and a second position (FIG. 45). The feeder 3220 can move between the first and second positions depending on the feed direction of the feeder 3220.

  For example, when the feeder 3220 moves in the feed direction 3270 (FIG. 44), friction between the bulbous end 3261 and the knit component 3260 causes the second portion 3249 to watch as indicated by the arrow 3272 in FIG. It can be rotated by pushing it around. When the feeder 3220 moves linearly in the feed direction 3270, the first protrusion 3262 can press the knit course immediately before the knit component 3260. More specifically, the first protrusion 3262 can push the stitch in front of the yarn feed tip 3246 in the feed direction 3270. The pressing of the first protrusion 3262 against the stitch of the knitted component 3260 is indicated by arrow 3274. Thus, the strands 3206 fed by the feeder 3220 can have sufficient clearance to be incorporated into the knit component 3260. For example, when the strand 3206 is inserted into the knit component 3260, the first protrusion 3262 can provide a gap for such insertion.

  On the other hand, if the feeder 3220 is moving in the opposite feed direction as indicated by arrow 3271 in FIG. 45, the friction between the knit component 3260 and the bulbous end 3261 is as indicated by arrow 3273. The second portion 3249 can be rotated counterclockwise. As a result, when the feeder 3220 moves in the feed direction 3271, the second protrusion 3264 can press the stitch in front of the yarn supplying tip 3246 as indicated by an arrow 3275. Thus, the second protrusion 3264 can provide sufficient clearance in the knit component 3260 for incorporation of the strand 3206.

  As a result, the protrusions 3262, 3264 can push the stitch in front of the yarn feed tip 3246 as the feeder 3220 moves for more accurate knitting. It will also be appreciated that the knitting machine can include a so-called “sinker” or “knockover” located adjacent to the needles of the needle bed. The sinkers can be opened in sequence as the feeder 3220 crosses the needle bed, and the sinkers can be closed in sequence after the feeder 3220 has passed and pushed down the knitted stitches. . Since the yarn feed tip 3246 is angled away from the direction of movement 3270 of the feeder 3220, the yarn feed tip 3246 can be brought closer to a sinker that is closed behind the feeder 3220. Thus, the strand 3206 can be quickly grasped by the closed sinker and pushed into the knit component 3260. As a result, the strand 3206 is likely to be accurately inserted into the knit component 3260.

  It will be appreciated that the movement of feeder 3220 between its first position (FIG. 44) and its second position (FIG. 45) can also be controlled in other ways. For example, the feeder 3220 can include an actuator and a controller for selectively moving the feeder 3220 between its first and second positions. It is also appreciated that a single feeder can encompass one or more configurations of the embodiments of FIGS. 43-45 and FIGS. 10-21 without departing from the scope of the present disclosure. It will be.

Descent Assembly Referring now to FIG. 37, a cross-sectional view of a knitting machine 200 according to an exemplary embodiment of the present disclosure is illustrated in a simplified form. (FIG. 37 is taken along line 37-37 in FIG. 9.) As shown, the knitting machine 200 advances the knit component 260 away from the needle bed 201 (eg, pulling, etc.). A lowering assembly 300 that may be included may be included. More specifically, the knit component 260 can be formed between the needle beds 201, and the knit component 260 extends downward in the needle bed 201 as a subsequent course is added. be able to. The lowering assembly 300 can receive, grasp, pull and / or advance the knit component 260 away from the needle bed 201, as shown by the downward arrow 315 in FIG. The lowering assembly 300 can also apply tension to the knit component 260 as the lowering assembly 300 pulls the knit component 260 from the needle bed 201.

  As will be described, the lowering assembly 300 relates to the tension applied to different portions of the knit component 260 as the knit component 260 is formed from and extends from the needle bed 201. One or more features may be included that increase the control by. Specifically, the lowering assembly 300 includes various independently controlled and independently actuated members for applying different levels of tension to the knit component 260 along the longitudinal direction along the needle bed 201. Can do.

  For example, the lowering assembly 300 includes a plurality of rollers 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314 as schematically illustrated in FIGS. 37 and 38. Can be included. The rollers 303 to 314 can be cylindrical and can include rubber or other material on the outer peripheral surface thereof. Further, the rollers 303 to 314 may include texturing (for example, a raised surface) on the outer peripheral surface thereof in order to improve gripping properties, or the rollers 313 and 314 may be substantially smooth. it can. Roller 303-roller 314 can have any suitable radius (eg, about 0.25 inches to 2 inches) and any suitable longitudinal length (eg, about 0.5 inches to 5 inches). Inch). As will be described, the rollers 303-314 can rotate about their respective axes of rotation and can be gripped in contact with the knit component 360. Since the knit component 360 is held by the needle 201 when the rollers 303 to 314 rotate, the rotation of the roller 303 to the roller 314 can apply tension by pulling the knit component 360.

  In the embodiment shown in FIG. 38, the knitting machine 200 includes a first group 301 (main roller group) composed of rollers 303, 304, 305, 306, 307, and 308, and rollers 309, 310, 311, 312, 312, 313, and 314. And a second group 302 (auxiliary roller group). As shown in the figure, the rollers 303 to 305 can be roughly arranged in a row 316 extending substantially parallel to the longitudinal direction of the needle bed 201. Similarly, the rollers 306 to 308 can be arranged in a row 317. Further, the outer peripheral surface of the roller 303 can face the outer peripheral surface of the roller 306. Similarly, the roller 304 can face the roller 307 and the roller 305 can face the roller 308. In the second group 302, the rollers 309 to 311 can be arranged in a row 318, and the rollers 312 to 314 can be arranged in another row 319. These rollers 309 to 314 can be paired so that the roller 309 faces the roller 312, the roller 310 faces the roller 313, and the roller 311 faces the roller 314.

  As illustrated in the embodiment of FIG. 38, the lowering assembly 300 can further include one or more biasing members 320-325. The biasing member 320 to the biasing member 325 may include a compression spring, a leaf spring, or other type of biasing member. The biasing member 320 to the biasing member 325 can bias the pair of opposed rollers 303 to 314 toward each other. For example, the biasing member 320 can be operably coupled to the shaft of the roller 306 (eg, via a mechanical linkage or the like) such that the roller 306 is biased toward the roller 303. Further, the biasing members 320 can bias the rollers 306 toward the rollers 303 such that their respective rotational axes remain substantially parallel but are spaced apart. Similarly, the biasing member 321 can bias the roller 307 toward the roller 304, the biasing member 322 can bias the roller 308 toward the roller 305, and the biasing member 323 is The roller 312 can be biased toward the roller 309, the biasing member 324 can bias the roller 313 toward the roller 310, and the biasing member 325 can be biased toward the roller 311. Can be energized. The opposing outer peripheral surfaces of these rollers can be pressed against each other by the respective biasing members 320 to 325.

  Further, the lowering assembly 300 can include a plurality of actuators 326 to actuators 331. Actuator 312 may include an electric motor, a hydraulic or pneumatic actuator, or any other suitable type of automatic actuation mechanism. In some embodiments, actuators 326 to 331 can also include servo motors. As shown in FIG. 38, the actuator 326 can be operably coupled to the biasing member 320, the actuator 327 can be operably coupled to the biasing member 321, and the actuator 328 can be The biasing member 322 can be operably coupled, the actuator 329 can be operably coupled to the biasing member 323, the actuator 330 can be operably coupled to the biasing member 324, Actuator 331 can be operably coupled to biasing member 325. The actuators 326 to 331 can be operated to selectively adjust the urging loads of the respective urging members 320 to 325. For example, the actuators 326 to 331 can be actuated to change the spring length of the biasing member 320 to the biasing member 325 in accordance with Hook's law for such adjustment of the bias load. The term “biasing load” should be interpreted broadly to include biasing forces, spring stiffness, and the like. Therefore, the compression between opposing pairs of rollers 303-314 can be selectively adjusted.

  Actuator 326 to actuator 331 can be operably coupled to controller 332. The controller 332 can be included in a personal computer and can include program logic, a processor, a display, input devices (eg, keyboard, mouse, touch-sensitive screen, etc.) and other related components. The control unit 332 can send an electric control signal to the actuator 326 to the actuator 331 in order to control the operation of the actuator 326 to the actuator 331. It will be appreciated that the controller 332 can control the actuators 326 to 331 independently. Therefore, the urging force, the spring rigidity, and the like can be changed between the urging member 320 to the urging member 325. As a result, as described, the tension on the knit component 260 can be varied, allowing different stitch types to be incorporated into the knit component 260, allowing several stitched areas to be It becomes possible to pull more tightly.

  Next, the operation of the lowering assembly 300 will be described. As schematically illustrated in FIG. 37, the knit component 260 can extend downward as the course is added. Thus, the knit component 260 can first be received between the rows 318 and 319 of rollers 309 to 314. As the knitted component 260 continues to stretch, the knitted component 260 can be received between the rows 316, 317 of rollers 303-308.

  Moreover, since the pair of the roller 303 to the roller 314 facing each other is separated along the longitudinal direction of the needle bed 201, the different pair of the roller 303 to the roller 314 advances in contact with different parts of the knit component 260. . The biasing load of the biasing member 320 to the biasing member 325 can be independently controlled such that tension is applied to each portion of the knit component 260 in a desired manner.

  39 to 42 show these operations in more detail. For simplicity, only rollers 309 through 314 are shown, but it will be appreciated that other rollers of the lowering assembly 300 can be used in a related manner. In the embodiment of FIGS. 39 to 42, the rollers 309 to 314 rotate continuously, but the urging loads applied by the urging members 323 to 325 are adjusted independently.

  As shown in FIG. 39, the first portion 340 of the knit component 260 is formed on an opposing pair of rollers 310,313. In other words, the yarn 211 is knitted into the first portion 340 in the knitting area directly above the rollers 310, 313. When the first portion 340 extends sufficiently to be received between the rollers 310, 313, the actuator 330 operates to increase the biasing load applied by the biasing member 324 to a predetermined level, and as a result. The rollers 310 and 313 can reliably hold and advance the first portion 340. This is indicated by arrow 342 in FIG. Accordingly, the rollers 310 and 313 can pull the first portion 340 from the needle bed 201 with a desired tension in order to facilitate the weaving of the first portion 340. At the same time, the other rollers 309, 311, 312, and 314 rotate, but the biasing loads 323 and 325 applied by the biasing members 323 and 325 still remain relatively small.

  Thereafter, as shown in FIG. 40, the second portion 344 of the knit component 260 can begin to be formed in the area of the needle bed 201 directly above the pair of rollers 311, 314. The second portion 344 can extend to be finally received between the rollers 311 and 314 as shown in FIG. As shown in FIGS. 40 and 41, the actuator 331 can operate to increase the biasing load applied by the biasing member 325 to a predetermined level. This is indicated by the arrow 342 in FIGS. At the same time, the first portion 340 of the knit component 260 can be fixedly held to the rollers 310, 313 (and can be fixedly held in the area of the needle bed 201 directly above the rollers 310,313). ) In order to keep the first portion 340 stationary at the desired tension, the actuator 330 can be operated to reduce the biasing load applied to the rollers 310, 313 by the biasing member 324. This is indicated by the arrow 343 in FIG. By reducing the urging load, the rollers 310 and 313 can rotate without moving the first portion 340 away from the needle bed 201 and can slide on the respective surfaces of the first portion 340.

  Next, as illustrated in FIG. 42, the yarn 211 can weave one or more courses to join the first and second portions 340, 344 together. Both actuators 330 and 331 are operable to increase the biasing load applied by biasing members 324 and 325, respectively. Accordingly, the rollers 310 and 313 can more securely grip the first portion 340 of the knit component 260, and the rollers 311 and 314 can grip the second portion 344 to hold the knit component 260. Further, the knit component 260 can be pulled from the needle bed 201 with the desired tension.

  These manufacturing methods can be used, for example, when forming an upper of footwear products such as the knit component described above. For example, the first portion 340 shown in FIGS. 39-42 can correspond to the tongue of a footwear product, and the second portion 344 can be integrally attached to the tongue. It can correspond to the inner side or the outer side of the upper. In other words, these methods can be used to form a one-piece upper in which the tongue and the peripheral portion of the upper are joined by at least one common continuous course in the upper throat area. . An example of such an upper is disclosed in U.S. Patent No. 5,053,097 filed on Feb. 20, 2012, the specification of which is hereby incorporated by reference in its entirety. These methods are also applicable when the knit component 260 is a knitted fabric that extends across the needle bed 201 and the different portions 340, 344 are pulled from the needle bed 201 by the lowering assembly 300 with different tensions. Can be used.

  It will be appreciated that if the rollers 303-314 increase the tension on the respective portions 340, 344 of the knit component 260, the sewing in those portions 340, 344 can be tighter and "skilled". Will be done. On the other hand, if the tension with respect to the respective portions 340 and 344 is reduced, the sewing can be made looser. Accordingly, adjusting the tension applied by the rollers 303-314 of the lowering assembly 300 can affect the appearance, feel and / or other characteristics of the knit component 260. Also, the tension applied by the rollers 303-314 can be varied to allow different types of yarns (eg, yarns of different diameters) to be incorporated into the knit component 260.

  Further, it will be appreciated that the outer peripheral surfaces of the rollers 303-314 can be rotated evenly and continuously on both sides of the knit component 260 to advance the knit component 260. Therefore, the compressive tangential load from the rollers 303 to 314 can be evenly distributed on the surface of the knit component 260. As a result, the knitting can be finished in a highly controlled manner.

  Additional embodiments of the lowering assembly are shown in FIGS. Although illustrated separately, it will be appreciated that one or more configurations of the lowering assemblies of FIGS. 32-42 can be combined.

  Also for simplicity, FIG. 32 illustrates a set of opposing rollers 2303, 2306 that can be incorporated into the assembly. As shown, roller 2306 can be operably coupled to actuator 2326. Actuator 2326 can be configured to drively rotate roller 2306 about its rotational axis. This can cause rotation of the roller 2303 due to compression between the two rollers 2306 and 2303. Similar to the embodiment of FIGS. 38-42, the actuator 2326 can include an electric motor, a pneumatic actuator, a hydraulic actuator, and the like. Actuator 2326 can also be a hub motor so that roller 2306 rotates around the housing of actuator 2326. The actuator 2326 can be controlled via the control unit 2332 as in the embodiment of FIGS. 38 to 42.

  FIG. 33 illustrates how the configuration of FIG. 32 may be employed for the plurality of rollers 2303-2306 of the lowering assembly. As shown, each of rollers 2306 and 2307 can be rotationally driven by respective independent actuators 2326 and 2327. The actuators 2326 and 2327 can be controlled by the control unit 2332. As described, the controller 2332 can control the actuators 2326 and 2327 to drively rotate the rollers 2306 and 2307 at different speeds. For example, the roller 2306 can be driven at a higher speed than the roller 2307, and vice versa. Also, the roller 2306 can be rotationally driven while the roller 2307 is substantially stationary, and vice versa.

  FIGS. 33-36 show a series of operations of the lowering assembly where the rollers 2306 and 2307 are rotated independently. As shown in FIG. 33, the rollers 2307 are rotationally driven by their respective actuators 2327 to advance the portion 2320 of the knit component 2260 between the rollers 2307 and 2304, causing the portion 2320 to reach the needle bed with the desired tension. It can be pulled from the area just above 201. This driving rotation of the rollers 2307 and 2304 is indicated by an arrow 2360 in FIG. This rotation can occur while the roller 2306 is substantially stationary.

  Next, when the portion 2320 of the knitted component 260 reaches a predetermined length (ie, a sufficient course of the yarn 211 has been added to the portion 320), the rollers 2307, 2304 can interrupt rotation. . As illustrated in FIG. 34, another portion 2322 of the knitted component 260 can begin to form.

  When the portion 2322 is long enough to reach the rollers 2306 and 2303, the roller 2306 can be driven to rotate by the respective actuator 2326. This rotation is represented in FIG. 35 by two curved arrows 2360. The yarn 2211 can continue to be knitted into the portion 2322 or otherwise incorporated. Rollers 2306 and 2303 can also rotate while rollers 2307 and 2304 are substantially stationary.

  When portion 2322 reaches a predetermined length, rollers 2303, 2306, 2304, 2307 can rotate together. This can be done while the yarn 2211 is incorporated into both portions 2320 and 2322. In other words, the yarn 2211 can be knitted into one or more successive courses connecting the portions 2320, 2322 as shown in FIG.

  Also, one opposing pair of rollers 2303 and 2306 can be driven to rotate faster than another opposing pair of rollers 2304 and 2307 so that portion 2322 is pulled with greater tension than portion 2320. Will be recognized correctly. Accordingly, the sewing in the portion 2322 can be formed more densely than the sewing of the portion 2320.

  Thus, the lowering assembly disclosed herein allows the knit component to be formed in a more controlled manner. This can facilitate the manufacture of knit components that are high quality, durable, and have a beautiful appearance.

  The present disclosure has been described in the above details and accompanying drawings with reference to various configurations. The purpose served by the description, however, is to provide examples of the various features and concepts related to the disclosure, and not to limit the scope of the invention. Those skilled in the art will recognize that multiple variations and modifications can be made to the above-described configurations without departing from the scope of the present disclosure as defined by the appended claims.

Claims (21)

A feeder used in a knitting machine having a knitted floor on which knit components are knitted and a drive bolt,
A feeder arm with a yarn feeding section configured to feed strands toward the knitted floor;
An operating arm operably coupled to the feeder arm, wherein the operating arm is configured to abut against the drive bolt and selectively move the feeder arm relative to the knitted floor An actuating arm including a contact surface, the contact surface being rounded and convex,
Feeder equipped with.   The feeder according to claim 1, wherein the contact surface is two-dimensionally curved and convex.   The feeder according to claim 1, wherein the contact surface is polished.   The feeder according to claim 1, wherein the contact surface is treated with a lubricant.   The feeder according to claim 1, wherein the operating arm includes a base and a bearing movably supported on the base, and the bearing defines the abutting surface.   The actuating arm includes a first end portion having a first contact surface and a second end portion having a second contact surface, and the first contact surface is connected to the drive bolt. The feeder arm is configured to contact and selectively move the feeder arm with respect to the knitted floor in the first direction, and the second contact surface contacts the drive bolt and In this direction, the feeder arm is configured to selectively move with respect to the knitted floor, and at least one of the first contact surface and the second contact surface is a rounded protrusion. The feeder according to claim 1, which is in a shape.   A carrier for movably supporting the feeder arm for movement relative to the carrier between a stretched position and a retracted position, wherein the yarn feeding section is compared with the retracted position at the stretched position; The contact surface is closer to the needle bed, and the contact surface is configured to contact the drive bolt to selectively move the feeder arm between the extended position and the retracted position. The feeder according to claim 1.   A mounting element configured to movably support the feeder arm on the rail for movement along a longitudinal axis of the rail, the abutment surface abutting the drive bolt; The feeder of claim 1, configured to selectively move the feeder arm along the longitudinal axis of the rail. A knitting machine for forming a knit component,
A knitted floor with a plurality of needles;
A drive bolt attached for movement relative to the knitted floor;
A feeder for feeding a strand toward the knitted floor,
A feeder arm with a yarn feeding section configured to feed strands toward the knitted floor;
An operating arm operably coupled to the feeder arm, wherein the operating arm is configured to abut against the drive bolt to selectively move the feeder arm relative to the knitted floor. An abutment surface, the abutment surface being a rounded convex arm;
A feeder including
Knitting machine equipped with.   And further comprising a carriage mounted for movement in a lateral direction with respect to the knitted floor, wherein the drive bolt is adapted for movement in the lateral direction relative to the carriage between an extended position and a retracted position. The knitting machine according to claim 9, wherein the driving bolt is movably attached to the abutting surface when the driving bolt is in the extended position.   The knitting machine according to claim 9, wherein the contact surface is two-dimensionally curved and convex.   The knitting machine according to claim 9, wherein the contact surface is polished.   The knitting machine according to claim 9, wherein the contact surface is treated with a lubricant.   The knitting machine according to claim 9, wherein the operating arm includes a base and a bearing movably supported on the base, the bearing defining the abutment surface.   The actuating arm includes a first end portion having a first contact surface and a second end portion having a second contact surface, and the first contact surface is connected to the drive bolt. The feeder arm is configured to contact and selectively move the feeder arm with respect to the knitted floor in the first direction, and the second contact surface contacts the drive bolt and In this direction, the feeder arm is configured to selectively move with respect to the knitted floor, and at least one of the first contact surface and the second contact surface is a rounded protrusion. The knitting machine according to claim 9, wherein the knitting machine is in a shape.   A carrier for movably supporting the feeder arm for movement relative to the carrier between a stretched position and a retracted position, wherein the yarn feeding section is compared with the retracted position at the stretched position; The contact surface is closer to the needle bed, and the contact surface is configured to contact the drive bolt to selectively move the feeder arm between the extended position and the retracted position. The knitting machine according to claim 9.   The feeder further comprises a rail having a longitudinal axis, the feeder further comprising a mounting element for movably supporting the feeder arm on the rail for movement along the longitudinal axis of the rail. The knitting machine according to claim 9, wherein a contact surface is configured to abut against the drive bolt and selectively move the feeder arm along the longitudinal axis of the rail. A knitting machine for forming a knit component,
A knitted floor with a plurality of needles;
A rail having a linear longitudinal axis, in the lateral direction, spaced from the knitted floor;
A carriage mounted for movement along the longitudinal axis;
A drive bolt movably attached to the carriage for the lateral movement relative to the carriage between an extended position and a retracted position;
A feeder for feeding a strand toward the knitted floor,
A feeder arm with a yarn feeding section configured to feed the strands toward the knitted floor;
An attachment element that movably supports the feeder arm on the rail for movement along the longitudinal axis of the rail;
An operating arm operably coupled to the feeder arm, the operating arm including a first contact surface and a second contact surface, wherein the first contact surface is the drive bolt Is in the extended position, abuts against the drive bolt and couples the feeder arm to the carriage for movement in a first direction along the longitudinal axis of the rail; The abutment surface abuts the drive bolt when the drive bolt is in the extended position and causes the feeder arm to move in a second direction along the longitudinal axis of the rail. An actuating arm coupled to the carriage, wherein at least one of the first and second abutment surfaces has a rounded convex shape;
A feeder including
Knitting machine equipped with.   The knitting machine according to claim 18, wherein at least one of the first and second contact surfaces is polished.   The knitting machine according to claim 18, wherein at least one of the first and second contact surfaces is treated with a lubricant.   The operating arm includes a base and a bearing movably supported on the base, the bearing defining at least one of the first and second abutment surfaces. 18. The knitting machine according to 18.

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